Brake -shoe



May 2, 1933. M Y 1,906,688

BRAKE SHOE Filed March 14 1928 ATTOR N EY Patented May 2," 1933 UNITED STATES.

KARL M. Yos'r, or SOUTHKBEND, INDIANA, LASSIGNOR 3o snnnrx BRA eo rANY; or SOUTHBEND, INDIANA, A oonronerron OFIILLINQIS BRAKE SHOE Application filed Mareh 14, 192s,:1seria1 No. 261,453. a

This invention relates to brake shoes, and is illustrated as embodied in an internal expanding automobile brake. An object of the invention is to provide a simple. and inexpensive reinforced steel shoe, preferably made of steel stampingsn Various features of novelty relate to forming reinforcing plates at one end of the 'shoe to give a broadened thrust surface and to carry a-transverse pm, and to forming reinforcing plates at the other end of the shoe with a novel pivot bearing and to.

other ,novel and desirable features of construction which will be apparent from the following description of theillustrative em-q bodiments shown in the accompanying drawing, in which:

Figure 1 is a side elevation of the shoe; Figure 2 is an inside elevation of the shoe; Figure 3 is a side elevation of one of the reinforcing plates; a v Figure t is a side elevation of another reinforcing plate; and

Figure 5 is a view corresponding to the lower end of Figure 2, but showing a modi-' fied formof pivot bearing.

.The illustrated shoe includes a body por tion built up by Welding together at inter vals anouter cylindrical rim or band 12 (to which brake lining 14 may be riveted or otherwise secured) and a central stiffening web 10, both rim and web preferably being steel stampings. fully described, and is claimed, in Patent No. 1,659,368, granted Bendix Brake Company on February, 14, 1928,0n an application filed by Leland E. Long.

Atthe one end of the shoe, the web 10 is reinforced by two' plates or stampings'l6,

projection-welded orotherwise secured to the opposite sides of 1 the web. Plates 16 and web 10 are shown formed with regis tering open notches 18, facing toward the end of the shoe, which notches are adapted to receive a brake-applying thrust device. The plates 16 are spread in opposite-directions away from web 10 at the end of the shoe, to give a wide-bearingfor thethrust device. Adjacent the other ends-of plates secured to opposite sides of the shoe web, to

This construction is more '16, registering openings 19 are formed in the two'plates and the web, for a suitable steady rest. Anopening 20 is provided in the web, for theattachment of a return spring, a portion of the web projecting from between plates 16 for this purpose. A pin 22 is pressed through registering openings 24 inthe'pl'ates and the web, for engagement with a positioning device; Pin 22 has a collar 26 engaging one face of the shoe, and has a flange 28 peened over against the other side of the shoe. I At the other end of the shoe, reinforcingplates 30 are projection-welded or otherwise;

form a triple-thickness arm at the end of the shoe. Registering openings 32 formed in the web and plates areprovided, similar to openings'18, for a suitable steady rest, Oppositely-drawn tubular bosses 34 on" plates 30 are arranged to register with an opening 36in web 10, to forma pivot bear- I ingof considerable length. As shown in Figure 5, in place of bosses 34,21. separate b i g 3 ay be provided with 011M 40 engaging one side of the shoe,and with a flange 42Ipeened over against the other side "of the shoe. I

While two illustrative embodiments have been described in detail, it is not my intentionto limit the scope .of'the invention to those particular embodiments, or otherwise than by theterms. of the appended claims.

Iclaim: p r V 1. A brake shoe having a central stiffening" web, and reinforcing plates secured to oppos sitesides of said web at one end of the shoe,

the endsof said plates being flared in opposite directions, and formed with registering notches opening toward the end of the shoe.

2. Ajbrake shoe having a'centralstifiena ing web and reinforcingplates secured to opposite sides of said web at one end of the shoe, the plates and web being formed with registering notches opening toward the end of the shoe, and the notched ends of the plates being in spaced relation to the web; '3. A brake shoe having a central stiffening web and reinforcing plates secured to opposite sides of said web'at one end of the shoe, the ends of the plates adjacent the end of the shoe being spread away from the Web.

4. A brake shoe having a stiffening web, reinforcing plates secured to opposite sides of the Web having offset end portions arranged in spaced relation. to the Web.

5. A brake shoe having a central stiffening Web, reinforcing plates secured to opposite sides of the Web at one end thereof, and offset portions on the reinforcing plates arranged in spaced relation to the Web, the Web and offset portions having registering notches.

In testimony whereof, I have hereunto signed my name.

KARL M. YOST. 

